115558993 has 12 divisors (see below), whose sum is σ = 129180240. Its totient is φ = 103266680.

The previous prime is 115558973. The next prime is 115559009. The reversal of 115558993 is 399855511.

It is not a de Polignac number, because 115558993 - 2¹³ = 115550801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115558973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 955 + ... + 15232.

It is an arithmetic number, because the mean of its divisors is an integer number (10765020).

Almost surely, 2^115558993 is an apocalyptic number.

It is an amenable number.

115558993 is a deficient number, since it is larger than the sum of its proper divisors (13621247).

115558993 is a wasteful number, since it uses less digits than its factorization.

115558993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16268 (or 16257 counting only the distinct ones).

The product of its digits is 243000, while the sum is 46.

The square root of 115558993 is about 10749.8368824834. The cubic root of 115558993 is about 487.0810679273.

The spelling of 115558993 in words is "one hundred fifteen million, five hundred fifty-eight thousand, nine hundred ninety-three".